J
J. Venkatramani
Researcher at Shiv Nadar University
Publications - 18
Citations - 219
J. Venkatramani is an academic researcher from Shiv Nadar University. The author has contributed to research in topics: Flutter & Aeroelasticity. The author has an hindex of 6, co-authored 13 publications receiving 132 citations. Previous affiliations of J. Venkatramani include Indian Institute of Technology Madras.
Papers
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Precursors to flutter instability by an intermittency route: A model free approach
TL;DR: In this article, the aeroelastic response of a NACA 0012 airfoil in the flow regimes prior to flutter is investigated in a wind tunnel, where the authors observe intermittent bursts of periodic oscillations in the pitch and plunge response, that appear in an irregular manner from a background of relatively lower amplitude aperiodic fluctuations.
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Multi-fractality in aeroelastic response as a precursor to flutter
TL;DR: In this article, the transition in aeroelastic response from an initial state characterised by low-amplitude aperiodic fluctuations to aero-elastic flutter when the system exhibits limit cycle oscillations was studied.
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Intermittency in pitch-plunge aeroelastic systems explained through stochastic bifurcations
TL;DR: In this article, the effects of irregular fluctuations in the flow on the dynamical stability characteristics of a two-degree-of-freedom pitch-plunge aeroelastic system with hardening nonlinearity were investigated.
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Physical mechanism of intermittency route to aeroelastic flutter
TL;DR: In this paper, the role of time scales of the input flow fluctuations is investigated, and it is shown that flow fluctuations with predominantly long time scales in the pre-flutter regime lead to “on-off” type intermittency.
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Investigations on precursor measures for aeroelastic flutter
TL;DR: In this paper, the authors investigated a suite of measures that are obtained directly from the time history of measurements and are hence model independent and investigated the dependence of these precursors on the size of the measured data set and the time required for their computation.